<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form>
    籍贯:
    <select>
        <option>山东</option>
        <option>北京</option>
        <option>天津</option>
        <option>广东</option>
        <option>火星</option>
        <option selected="selected">我家</option>
        <!-- option意思是选项,selected为默认选择 -->
    </select>
    </form>
</body>
</html>